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Unit 6 When was it invented?
第二课时（分层作业）
基础达标
一． 单词默写汉译英
1.意外的；偶然的 2.偶然；意外地
3.统治者；支配 4.煮沸；烧开
5.保持不变;剩余 6.气味；闻到
7.圣人 8.国家的
9.贸易 10.发生
11.流行,普及 12.怀疑
13.毫无疑问
二.运用单词的正确形式填空
14.The cheese cake （smell）so good that I can't wait to eat it.
15.It is （believe）that aliens live in some places far from the earth.
16.Tea,the most popular drink is an （accident）invention.
17.The country was without a （rule）after a big war.
18.Do you know who was the first （discover）tea as a drink?
19.Henry watched the milk until it （boil）and then turned off the gas.
20.After the big earthquake, the ancient house （remain）safe. It was
amazing.
21.The pyramids were built to protect the tombs 坟墓）of （rule）or other
important persons.
22.Please remember （lock）the door when you leave.
23.The cake （smell） delicious and I want some.
三.同义匹配
( )24. take place A. no doubt
( )25. an open fire B. a fire that burns wood
( )26. by accident C. to affect larger
( )27. mention D. to cause a result
( )28. describe E. to be seen
( )29. appear F. to say what sth. is like
( )30. produce G. to talk about sth. briefly
( )31. spread H. by chance( )32. smell I. to notice scents with nose
( )33. without doubt J. to happen
能力提升
四.单项选择
1.To people's great surprise, the old building still after the strong
earthquake. （ ）
A. refused B. remained C. required D. reviewed
2.Paper-making by the Chinese in the Western Han dynasty（朝代）.
（ ）
A.is invented B. invented
C. was invented D. has invented
3.- Who______ the computer?
-Sorry, I've no idea. But it has changed the world greatly. （ ）
A. invented B. discovered C. made D. played
4.The cheese cake ______ so good that I can't wait to eat it. （ ）
A. tastes B. feels C. sounds D. smells
5.-Look at the stone bridge! Do you know ______it was built?
-In the1860s. It's quite old. （ ）
A. when B. how C. where D. why
6.-It has been raining for days. When will it stop?
-It is that the rainy season will be longer than last year. （ ）
A. says B. said C. saying D.to say
7.In the past few years, great changes ______in Lianyungang. （ ）
A. take place
B. took place
C. have taken place
D. have been taken place
8.The light bulb in the dark. （ ）
A.is used to seeing B. used to seeing
C.is used for seeing D.is use for seeing
9.Thomas Edison was one of in the world. （ ）
A. more famous inventor
B. the most famous inventorC. the most famous inventors
D. famous inventors
10.The zipper became very popular_____1917.（ ）
A.at B. on C. around D. for
拓展训练
五.阅读理解（共5小题）
Cai Lun invented paper around 2,000 years ago in China. It is an important
invention. Before the invention of paper, people had to remember lots of information
or write it on stone, wood, leaves. etc.
Today everyone in the world uses paper. With paper, we can make books and
print newspapers. Sharing information is a lot easier with the help of paper.
People use paper every day. Students do homework and keep a diary on paper.
Paper is a great invention.
Alan Turing was born in London, England, in 1912.He attended Cambridge
University from1931 to 1934.Turing was a mathematician（数学家） and a
computer scientist. Many people called Turing the father of computer science. He
created the first design（设计）for a modern computer.
Turing wanted to know if a machine could think for itself and trick someone into
believing they were having a conversation with another person. This became known
as the Turing test. In the test, a human talked to two other people through a computer.
One was a machine, and the other was a person. This idea is still used today.
11.When was paper invented by Cai Lun?
A. Around 2 ,000 years ago. B. About 200 years ago.
C. Around 1 ,000 years ago.
12.People can do the following things with paper EXCEPT .
A. sharing information
B. printing newspapers
C. having the Turing test
13.Many people considered Alan Turing to be .
A. the inventor of printing
B. the father of modern education
C. the father of computer science
14.In order to have the test ,Turing needed .A. three people, one computer and a machine
B. two people, one computer and a machine
C. two people, two computers and a machine
15.From the passage, we know Cai Lun's invention and Turing's idea are
.
A. hard to accept
B. not used any more
C. still used today
